Journal of Information Display
- Volume 2 Issue 4
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- Pages.19-22
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- 2001
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- 1598-0316(pISSN)
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- 2158-1606(eISSN)
Eelectro-optic Behavior of Opal-LC Photonic Crystals
- Kang, Dae-Seung (Department of Electrical Engineering, Soongsil University)
- Published : 2001.12.21
Abstract
In this paper, we describe the electro-optic effects of photonic crystals made of a synthetic opal filled with a nematic liquid crystal(LC). By applying an external electric field, a shift in the Bragg reflection peak position(stop band) and a field-induced change in its peak reflectivity are observed. These significant surface alignment effects of the opal-LC composite are discussed in a similar manner for Freederick-type transitions of LC within a confined geometry in the presence of external fields.